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Commit | Line | Data |
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adb4b10c | 1 | /* |
b3f22de0 | 2 | * This file is part of the PulseView project. |
adb4b10c JH |
3 | * |
4 | * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
269528f5 | 21 | #ifdef ENABLE_DECODE |
4e5a4405 | 22 | #include <libsigrokdecode/libsigrokdecode.h> |
269528f5 | 23 | #endif |
4e5a4405 | 24 | |
adb4b10c | 25 | #include <assert.h> |
f25770e2 | 26 | #include <limits.h> |
adb4b10c JH |
27 | #include <math.h> |
28 | ||
29 | #include <boost/foreach.hpp> | |
30 | ||
31 | #include <QEvent> | |
cbd80f64 | 32 | #include <QMouseEvent> |
adb4b10c JH |
33 | #include <QScrollBar> |
34 | ||
b9329558 | 35 | #include "decodetrace.h" |
1d8dca91 | 36 | #include "header.h" |
ccdd3ef5 | 37 | #include "ruler.h" |
2e575351 | 38 | #include "signal.h" |
cdf7bea7 JH |
39 | #include "view.h" |
40 | #include "viewport.h" | |
adb4b10c | 41 | |
1b1ec774 JH |
42 | #include "pv/sigsession.h" |
43 | #include "pv/data/logic.h" | |
44 | #include "pv/data/logicsnapshot.h" | |
adb4b10c | 45 | |
819f4c25 JH |
46 | using boost::shared_ptr; |
47 | using boost::weak_ptr; | |
1bc6525b | 48 | using pv::data::SignalData; |
819f4c25 JH |
49 | using std::deque; |
50 | using std::list; | |
51 | using std::max; | |
1bc6525b | 52 | using std::make_pair; |
819f4c25 | 53 | using std::min; |
1bc6525b | 54 | using std::pair; |
819f4c25 JH |
55 | using std::set; |
56 | using std::vector; | |
adb4b10c | 57 | |
cdf7bea7 JH |
58 | namespace pv { |
59 | namespace view { | |
adb4b10c | 60 | |
cdf7bea7 JH |
61 | const double View::MaxScale = 1e9; |
62 | const double View::MinScale = 1e-15; | |
adb4b10c | 63 | |
f25770e2 JH |
64 | const int View::MaxScrollValue = INT_MAX / 2; |
65 | ||
8d44d030 JH |
66 | const int View::SignalHeight = 30; |
67 | const int View::SignalMargin = 10; | |
49153683 | 68 | const int View::SignalSnapGridSize = 10; |
1d8dca91 | 69 | |
f76af637 JH |
70 | const QColor View::CursorAreaColour(220, 231, 243); |
71 | ||
2e04f9bd JH |
72 | const QSizeF View::LabelPadding(4, 0); |
73 | ||
cdf7bea7 | 74 | View::View(SigSession &session, QWidget *parent) : |
adb4b10c JH |
75 | QAbstractScrollArea(parent), |
76 | _session(session), | |
cdf7bea7 | 77 | _viewport(new Viewport(*this)), |
ccdd3ef5 | 78 | _ruler(new Ruler(*this)), |
1d8dca91 | 79 | _header(new Header(*this)), |
adb4b10c JH |
80 | _scale(1e-6), |
81 | _offset(0), | |
cbd80f64 | 82 | _v_offset(0), |
528bd8a1 | 83 | _updating_scroll(false), |
f76af637 | 84 | _show_cursors(false), |
b42d25c4 | 85 | _cursors(*this), |
cbd80f64 | 86 | _hover_point(-1, -1) |
adb4b10c | 87 | { |
b16907d3 JH |
88 | connect(horizontalScrollBar(), SIGNAL(valueChanged(int)), |
89 | this, SLOT(h_scroll_value_changed(int))); | |
adb4b10c JH |
90 | connect(verticalScrollBar(), SIGNAL(valueChanged(int)), |
91 | this, SLOT(v_scroll_value_changed(int))); | |
69dd2b03 JH |
92 | |
93 | connect(&_session, SIGNAL(signals_changed()), | |
94 | this, SLOT(signals_changed())); | |
1f374035 JH |
95 | connect(&_session, SIGNAL(data_received()), |
96 | this, SLOT(data_updated())); | |
97 | connect(&_session, SIGNAL(frame_ended()), | |
adb4b10c | 98 | this, SLOT(data_updated())); |
1d8dca91 | 99 | |
58864c5c | 100 | connect(_cursors.first().get(), SIGNAL(time_changed()), |
ca4ec3ea | 101 | this, SLOT(marker_time_changed())); |
58864c5c | 102 | connect(_cursors.second().get(), SIGNAL(time_changed()), |
ca4ec3ea JH |
103 | this, SLOT(marker_time_changed())); |
104 | ||
d7c0ca4a JH |
105 | connect(_header, SIGNAL(geometry_updated()), |
106 | this, SLOT(on_geometry_updated())); | |
54401bbb | 107 | connect(_header, SIGNAL(signals_moved()), |
07204819 | 108 | this, SLOT(on_signals_moved())); |
54401bbb | 109 | |
17348f85 JH |
110 | connect(_header, SIGNAL(selection_changed()), |
111 | _ruler, SLOT(clear_selection())); | |
112 | connect(_ruler, SIGNAL(selection_changed()), | |
113 | _header, SLOT(clear_selection())); | |
114 | ||
8b454527 JH |
115 | connect(_header, SIGNAL(selection_changed()), |
116 | this, SIGNAL(selection_changed())); | |
117 | connect(_ruler, SIGNAL(selection_changed()), | |
118 | this, SIGNAL(selection_changed())); | |
119 | ||
adb4b10c | 120 | setViewport(_viewport); |
cbd80f64 JH |
121 | |
122 | _viewport->installEventFilter(this); | |
123 | _ruler->installEventFilter(this); | |
124 | _header->installEventFilter(this); | |
d873f4d6 | 125 | |
9f46d905 JH |
126 | // Trigger the initial event manually. The default device has signals |
127 | // which were created before this object came into being | |
d873f4d6 | 128 | signals_changed(); |
adb4b10c JH |
129 | } |
130 | ||
1d19ef83 JH |
131 | SigSession& View::session() |
132 | { | |
133 | return _session; | |
134 | } | |
135 | ||
38eeddea JH |
136 | const SigSession& View::session() const |
137 | { | |
138 | return _session; | |
139 | } | |
140 | ||
cdf7bea7 | 141 | double View::scale() const |
adb4b10c JH |
142 | { |
143 | return _scale; | |
144 | } | |
145 | ||
cdf7bea7 | 146 | double View::offset() const |
adb4b10c JH |
147 | { |
148 | return _offset; | |
149 | } | |
150 | ||
cdf7bea7 | 151 | int View::v_offset() const |
adb4b10c JH |
152 | { |
153 | return _v_offset; | |
154 | } | |
155 | ||
cdf7bea7 | 156 | void View::zoom(double steps) |
adb4b10c | 157 | { |
f3f98f8f | 158 | zoom(steps, _viewport->width() / 2); |
adb4b10c JH |
159 | } |
160 | ||
17c0f398 JH |
161 | void View::zoom(double steps, int offset) |
162 | { | |
8b2e2a9a | 163 | set_zoom(_scale * pow(3.0/2.0, -steps), offset); |
17c0f398 JH |
164 | } |
165 | ||
ca46b534 JH |
166 | void View::zoom_fit() |
167 | { | |
1bc6525b JH |
168 | const pair<double, double> extents = get_time_extents(); |
169 | const double delta = extents.second - extents.first; | |
170 | if (delta < 1e-12) | |
ca46b534 JH |
171 | return; |
172 | ||
173 | assert(_viewport); | |
174 | const int w = _viewport->width(); | |
175 | if (w <= 0) | |
176 | return; | |
177 | ||
78311127 JH |
178 | const double scale = max(min(delta / w, MaxScale), MinScale); |
179 | set_scale_offset(scale, extents.first); | |
ca46b534 JH |
180 | } |
181 | ||
d1e7d82c JH |
182 | void View::zoom_one_to_one() |
183 | { | |
184 | using pv::data::SignalData; | |
185 | ||
186 | const vector< shared_ptr<Signal> > sigs( | |
187 | session().get_signals()); | |
188 | ||
189 | // Make a set of all the visible data objects | |
0fc664a9 | 190 | set< shared_ptr<SignalData> > visible_data = get_visible_data(); |
d1e7d82c JH |
191 | if (visible_data.empty()) |
192 | return; | |
193 | ||
194 | double samplerate = 0.0; | |
195 | BOOST_FOREACH(const shared_ptr<SignalData> d, visible_data) { | |
196 | assert(d); | |
197 | samplerate = max(samplerate, d->samplerate()); | |
198 | } | |
199 | ||
200 | if (samplerate == 0.0) | |
201 | return; | |
202 | ||
203 | assert(_viewport); | |
204 | const int w = _viewport->width(); | |
205 | if (w <= 0) | |
206 | return; | |
207 | ||
208 | set_zoom(1.0 / samplerate, w / 2); | |
209 | } | |
210 | ||
cdf7bea7 | 211 | void View::set_scale_offset(double scale, double offset) |
adb4b10c JH |
212 | { |
213 | _scale = scale; | |
214 | _offset = offset; | |
ccdd3ef5 | 215 | |
adb4b10c | 216 | update_scroll(); |
ccdd3ef5 | 217 | _ruler->update(); |
adb4b10c | 218 | _viewport->update(); |
e0fc5810 | 219 | scale_offset_changed(); |
adb4b10c JH |
220 | } |
221 | ||
38eeddea JH |
222 | vector< shared_ptr<Trace> > View::get_traces() const |
223 | { | |
224 | const vector< shared_ptr<Signal> > sigs( | |
225 | session().get_signals()); | |
269528f5 | 226 | #ifdef ENABLE_DECODE |
b9329558 | 227 | const vector< shared_ptr<DecodeTrace> > decode_sigs( |
38eeddea JH |
228 | session().get_decode_signals()); |
229 | vector< shared_ptr<Trace> > traces( | |
230 | sigs.size() + decode_sigs.size()); | |
269528f5 JH |
231 | #else |
232 | vector< shared_ptr<Trace> > traces(sigs.size()); | |
233 | #endif | |
38eeddea JH |
234 | |
235 | vector< shared_ptr<Trace> >::iterator i = traces.begin(); | |
236 | i = copy(sigs.begin(), sigs.end(), i); | |
269528f5 | 237 | #ifdef ENABLE_DECODE |
38eeddea | 238 | i = copy(decode_sigs.begin(), decode_sigs.end(), i); |
269528f5 | 239 | #endif |
38eeddea | 240 | |
9a2bc5fc | 241 | stable_sort(traces.begin(), traces.end(), compare_trace_v_offsets); |
38eeddea JH |
242 | return traces; |
243 | } | |
244 | ||
94936133 JH |
245 | list<weak_ptr<SelectableItem> > View::selected_items() const |
246 | { | |
247 | list<weak_ptr<SelectableItem> > items; | |
248 | ||
249 | // List the selected signals | |
38eeddea JH |
250 | const vector< shared_ptr<Trace> > traces(get_traces()); |
251 | BOOST_FOREACH (shared_ptr<Trace> t, traces) { | |
252 | assert(t); | |
253 | if (t->selected()) | |
254 | items.push_back(t); | |
94936133 JH |
255 | } |
256 | ||
257 | // List the selected cursors | |
258 | if (_cursors.first()->selected()) | |
259 | items.push_back(_cursors.first()); | |
260 | if (_cursors.second()->selected()) | |
261 | items.push_back(_cursors.second()); | |
262 | ||
263 | return items; | |
264 | } | |
265 | ||
1bc6525b JH |
266 | set< shared_ptr<SignalData> > View::get_visible_data() const |
267 | { | |
268 | const vector< shared_ptr<Signal> > sigs( | |
269 | session().get_signals()); | |
270 | ||
271 | // Make a set of all the visible data objects | |
272 | set< shared_ptr<SignalData> > visible_data; | |
273 | BOOST_FOREACH(const shared_ptr<Signal> sig, sigs) | |
274 | if (sig->enabled()) | |
275 | visible_data.insert(sig->data()); | |
276 | ||
277 | return visible_data; | |
278 | } | |
279 | ||
280 | pair<double, double> View::get_time_extents() const | |
281 | { | |
282 | const set< shared_ptr<SignalData> > visible_data = get_visible_data(); | |
283 | if (visible_data.empty()) | |
284 | return make_pair(0.0, 0.0); | |
285 | ||
286 | double left_time = DBL_MAX, right_time = DBL_MIN; | |
287 | BOOST_FOREACH(const shared_ptr<SignalData> d, visible_data) | |
288 | { | |
289 | const double start_time = d->get_start_time(); | |
a472a884 JH |
290 | double samplerate = d->samplerate(); |
291 | samplerate = (samplerate <= 0.0) ? 1.0 : samplerate; | |
292 | ||
1bc6525b JH |
293 | left_time = min(left_time, start_time); |
294 | right_time = max(right_time, start_time + | |
a472a884 | 295 | d->get_max_sample_count() / samplerate); |
1bc6525b JH |
296 | } |
297 | ||
298 | assert(left_time < right_time); | |
299 | return make_pair(left_time, right_time); | |
300 | } | |
301 | ||
f76af637 JH |
302 | bool View::cursors_shown() const |
303 | { | |
304 | return _show_cursors; | |
305 | } | |
306 | ||
307 | void View::show_cursors(bool show) | |
308 | { | |
309 | _show_cursors = show; | |
310 | _ruler->update(); | |
311 | _viewport->update(); | |
312 | } | |
313 | ||
b4d91e56 JH |
314 | void View::centre_cursors() |
315 | { | |
316 | const double time_width = _scale * _viewport->width(); | |
58864c5c JH |
317 | _cursors.first()->set_time(_offset + time_width * 0.4); |
318 | _cursors.second()->set_time(_offset + time_width * 0.6); | |
b4d91e56 JH |
319 | _ruler->update(); |
320 | _viewport->update(); | |
321 | } | |
322 | ||
b42d25c4 | 323 | CursorPair& View::cursors() |
f76af637 JH |
324 | { |
325 | return _cursors; | |
326 | } | |
327 | ||
58864c5c JH |
328 | const CursorPair& View::cursors() const |
329 | { | |
330 | return _cursors; | |
331 | } | |
332 | ||
cbd80f64 JH |
333 | const QPoint& View::hover_point() const |
334 | { | |
335 | return _hover_point; | |
336 | } | |
337 | ||
4b192962 JH |
338 | void View::normalize_layout() |
339 | { | |
38eeddea | 340 | const vector< shared_ptr<Trace> > traces(get_traces()); |
4b192962 JH |
341 | |
342 | int v_min = INT_MAX; | |
38eeddea JH |
343 | BOOST_FOREACH(const shared_ptr<Trace> t, traces) |
344 | v_min = min(t->get_v_offset(), v_min); | |
4b192962 JH |
345 | |
346 | const int delta = -min(v_min, 0); | |
38eeddea JH |
347 | BOOST_FOREACH(shared_ptr<Trace> t, traces) |
348 | t->set_v_offset(t->get_v_offset() + delta); | |
4b192962 JH |
349 | |
350 | verticalScrollBar()->setSliderPosition(_v_offset + delta); | |
351 | v_scroll_value_changed(verticalScrollBar()->sliderPosition()); | |
352 | } | |
353 | ||
9cef9567 JH |
354 | void View::update_viewport() |
355 | { | |
356 | assert(_viewport); | |
357 | _viewport->update(); | |
358 | } | |
359 | ||
f25770e2 JH |
360 | void View::get_scroll_layout(double &length, double &offset) const |
361 | { | |
1bc6525b JH |
362 | const pair<double, double> extents = get_time_extents(); |
363 | length = (extents.second - extents.first) / _scale; | |
f25770e2 JH |
364 | offset = _offset / _scale; |
365 | } | |
366 | ||
d1e7d82c JH |
367 | void View::set_zoom(double scale, int offset) |
368 | { | |
369 | const double cursor_offset = _offset + _scale * offset; | |
370 | const double new_scale = max(min(scale, MaxScale), MinScale); | |
371 | const double new_offset = cursor_offset - new_scale * offset; | |
372 | set_scale_offset(new_scale, new_offset); | |
373 | } | |
374 | ||
cdf7bea7 | 375 | void View::update_scroll() |
adb4b10c JH |
376 | { |
377 | assert(_viewport); | |
378 | ||
379 | const QSize areaSize = _viewport->size(); | |
380 | ||
381 | // Set the horizontal scroll bar | |
382 | double length = 0, offset = 0; | |
f25770e2 JH |
383 | get_scroll_layout(length, offset); |
384 | length = max(length - areaSize.width(), 0.0); | |
adb4b10c | 385 | |
b4ef7f2a | 386 | horizontalScrollBar()->setPageStep(areaSize.width() / 2); |
f25770e2 | 387 | |
528bd8a1 JH |
388 | _updating_scroll = true; |
389 | ||
333d5bbc | 390 | if (length < MaxScrollValue) { |
f25770e2 JH |
391 | horizontalScrollBar()->setRange(0, length); |
392 | horizontalScrollBar()->setSliderPosition(offset); | |
393 | } else { | |
394 | horizontalScrollBar()->setRange(0, MaxScrollValue); | |
395 | horizontalScrollBar()->setSliderPosition( | |
396 | _offset * MaxScrollValue / (_scale * length)); | |
397 | } | |
adb4b10c | 398 | |
528bd8a1 JH |
399 | _updating_scroll = false; |
400 | ||
adb4b10c JH |
401 | // Set the vertical scrollbar |
402 | verticalScrollBar()->setPageStep(areaSize.height()); | |
403 | verticalScrollBar()->setRange(0, | |
4b192962 JH |
404 | _viewport->get_total_height() + SignalMargin - |
405 | areaSize.height()); | |
adb4b10c JH |
406 | } |
407 | ||
d7c0ca4a JH |
408 | void View::update_layout() |
409 | { | |
a6c1726e JH |
410 | setViewportMargins(_header->sizeHint().width(), |
411 | _ruler->sizeHint().height(), 0, 0); | |
d7c0ca4a JH |
412 | _ruler->setGeometry(_viewport->x(), 0, |
413 | _viewport->width(), _viewport->y()); | |
414 | _header->setGeometry(0, _viewport->y(), | |
415 | _viewport->x(), _viewport->height()); | |
416 | update_scroll(); | |
417 | } | |
418 | ||
38eeddea JH |
419 | bool View::compare_trace_v_offsets(const shared_ptr<Trace> &a, |
420 | const shared_ptr<Trace> &b) | |
421 | { | |
422 | assert(a); | |
423 | assert(b); | |
424 | return a->get_v_offset() < b->get_v_offset(); | |
425 | } | |
426 | ||
cbd80f64 JH |
427 | bool View::eventFilter(QObject *object, QEvent *event) |
428 | { | |
429 | const QEvent::Type type = event->type(); | |
333d5bbc | 430 | if (type == QEvent::MouseMove) { |
cbd80f64 JH |
431 | |
432 | const QMouseEvent *const mouse_event = (QMouseEvent*)event; | |
333d5bbc | 433 | if (object == _viewport) |
cbd80f64 | 434 | _hover_point = mouse_event->pos(); |
333d5bbc | 435 | else if (object == _ruler) |
cbd80f64 | 436 | _hover_point = QPoint(mouse_event->x(), 0); |
333d5bbc | 437 | else if (object == _header) |
cbd80f64 JH |
438 | _hover_point = QPoint(0, mouse_event->y()); |
439 | else | |
440 | _hover_point = QPoint(-1, -1); | |
441 | ||
442 | hover_point_changed(); | |
443 | ||
333d5bbc | 444 | } else if (type == QEvent::Leave) { |
cbd80f64 JH |
445 | _hover_point = QPoint(-1, -1); |
446 | hover_point_changed(); | |
447 | } | |
448 | ||
449 | return QObject::eventFilter(object, event); | |
450 | } | |
451 | ||
cdf7bea7 | 452 | bool View::viewportEvent(QEvent *e) |
adb4b10c JH |
453 | { |
454 | switch(e->type()) { | |
455 | case QEvent::Paint: | |
456 | case QEvent::MouseButtonPress: | |
457 | case QEvent::MouseButtonRelease: | |
458 | case QEvent::MouseButtonDblClick: | |
459 | case QEvent::MouseMove: | |
460 | case QEvent::Wheel: | |
461 | return false; | |
462 | ||
463 | default: | |
464 | return QAbstractScrollArea::viewportEvent(e); | |
465 | } | |
466 | } | |
467 | ||
e314eca4 | 468 | void View::resizeEvent(QResizeEvent*) |
adb4b10c | 469 | { |
d7c0ca4a | 470 | update_layout(); |
adb4b10c JH |
471 | } |
472 | ||
b16907d3 | 473 | void View::h_scroll_value_changed(int value) |
adb4b10c | 474 | { |
528bd8a1 JH |
475 | if (_updating_scroll) |
476 | return; | |
477 | ||
f25770e2 | 478 | const int range = horizontalScrollBar()->maximum(); |
333d5bbc | 479 | if (range < MaxScrollValue) |
f25770e2 JH |
480 | _offset = _scale * value; |
481 | else { | |
482 | double length = 0, offset; | |
483 | get_scroll_layout(length, offset); | |
484 | _offset = _scale * length * value / MaxScrollValue; | |
485 | } | |
486 | ||
ccdd3ef5 | 487 | _ruler->update(); |
adb4b10c JH |
488 | _viewport->update(); |
489 | } | |
490 | ||
cdf7bea7 | 491 | void View::v_scroll_value_changed(int value) |
adb4b10c JH |
492 | { |
493 | _v_offset = value; | |
1d8dca91 | 494 | _header->update(); |
adb4b10c JH |
495 | _viewport->update(); |
496 | } | |
497 | ||
69dd2b03 JH |
498 | void View::signals_changed() |
499 | { | |
ef8311a4 | 500 | int offset = SignalMargin + SignalHeight; |
01fd3263 JH |
501 | const vector< shared_ptr<Trace> > traces(get_traces()); |
502 | BOOST_FOREACH(shared_ptr<Trace> t, traces) { | |
503 | t->set_view(this); | |
01fd3263 | 504 | t->set_v_offset(offset); |
ef8311a4 JH |
505 | offset += SignalHeight + 2 * SignalMargin; |
506 | } | |
507 | ||
a6c1726e | 508 | update_layout(); |
ef8311a4 | 509 | normalize_layout(); |
69dd2b03 JH |
510 | } |
511 | ||
cdf7bea7 | 512 | void View::data_updated() |
adb4b10c | 513 | { |
adb4b10c JH |
514 | // Update the scroll bars |
515 | update_scroll(); | |
516 | ||
517 | // Repaint the view | |
518 | _viewport->update(); | |
519 | } | |
cdf7bea7 | 520 | |
ca4ec3ea JH |
521 | void View::marker_time_changed() |
522 | { | |
523 | _ruler->update(); | |
524 | _viewport->update(); | |
525 | } | |
526 | ||
07204819 | 527 | void View::on_signals_moved() |
54401bbb | 528 | { |
07204819 JH |
529 | update_scroll(); |
530 | signals_moved(); | |
54401bbb JH |
531 | } |
532 | ||
d7c0ca4a JH |
533 | void View::on_geometry_updated() |
534 | { | |
535 | update_layout(); | |
536 | } | |
537 | ||
cdf7bea7 JH |
538 | } // namespace view |
539 | } // namespace pv |